Himanshu Bhuyan

WooCommerce Minimum & Maximum Purchase Limit plugin gives you the ability to set up minimum and maximum purchase limit for your customers. If the customer cross the purchase limit or try to buy below minimum purchase limit , the plugin will show a custom warning message to your customers as well as you can also disable add to cart and checkout button if your customers try to buy outside of the limit you set .
WooCommerce Minimum & Maximum Purchase Limit plugin also gives you the ability to set up Purchase Restriction date so that you can keep the limit for a certain period . There is also option to setup limit for life time. You can also put purchase limit base on user role.
Fully tested with WooCommerce 2.6.9 .
<a href="http://codecanyon.net/item/woocommerce-minimum-maximum-purchase-limit/15023238" rel="nofollow ugc">Get Pro Version</a>
<a href="http://womaxmin.iitechnology.in/womaxmin-documentation/" rel="nofollow ugc">Documentation</a>

WooMaxMin for WooCommerce

WooCommerce Minimum & Maximum Purchase Limit plugin gives you the ability to set up minimum and maximum purchase limit for your customers.

themeszone

This is a WP e-Commerce plugin that allows you to hide the price of a specific product and replace it with a message asking your customers to call for price. 
The plugin is easy to use and configure. There there 15 “Call for Price” icons available as well as an ability to upload custom “Call for Price” icons. Install it, Configure it and Rock it.
<h3>Donations</h3>
http://ecommercewp.com/wp-e-commerce-call-for-price/

WP e-Commerce Call for Price

This is a WP e-Commerce plugin that allows you to hide the price of a specific product and replace it with a message asking your customers to call for …

WooMaxMin for WooCommerce vs WP e-Commerce Call for Price